If you are on Earth:
You are walking along the beach trail, when suddenly, you see a lone gem sitting in the sand, looking at the stars. She seems sad.
If you are on Homeworld:
You have been sent on a mission to capture the experiment Diamond who had escaped. As you enter the ship with your Ruby guard, you get a bad feeling about this...
(you can be any character)
(invite all SU Fans)
(if you know GD then this is before you meet her)